Analysis of biological data collected in the Bull Run Watershed, Portland, Oregon, 1978 to 1983 / by Daphne G. Clifton ; prepared in cooperation with the City of Portland Water Bureau.

Portland, Or. : U.S. Dept. of the Interior, Geological Survey ; Denver, Colo. : Open-File Services Section, Western Distribution Branch, 1985.

v, 62 p. : 1 map ; 28 cm.

Shipping list no.: 86-23-P.

English

June 01, 2002

Bibliography: p. 53-57.